Do burgers need ketchup? The birthplace of the burger, Louis’ Lunch, doesn’t think so. The family-run business has maintained a strict no-ketchup policy since they opened in 1895. We infiltrate this notorious ketchup resistance cell to try to understand why ketchup is such a polarizing condiment. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info. Learn more about your ad choices. Visit megaphone.fm/adchoices